Gypsy moth, Lyrnantria dispar (L.), was first discovered in Michigan in 1954. Results of survey for the years 1954-1980 are presented.
"Gypsy Moth (Lepidoptera: Lymantriidae) Survey in Michigan,"
The Great Lakes Entomologist: Vol. 14
, Article 5.
Available at: http://scholar.valpo.edu/tgle/vol14/iss2/5